yuzu/src/core/hle/service/filesystem/filesystem.cpp

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// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <boost/container/flat_map.hpp>
#include "common/file_util.h"
#include "core/file_sys/filesystem.h"
#include "core/file_sys/savedata_factory.h"
#include "core/file_sys/sdmc_factory.h"
#include "core/hle/service/filesystem/filesystem.h"
#include "core/hle/service/filesystem/fsp_srv.h"
namespace Service::FileSystem {
/**
* Map of registered file systems, identified by type. Once an file system is registered here, it
* is never removed until UnregisterFileSystems is called.
*/
static boost::container::flat_map<Type, std::unique_ptr<FileSys::FileSystemFactory>> filesystem_map;
ResultCode RegisterFileSystem(std::unique_ptr<FileSys::FileSystemFactory>&& factory, Type type) {
auto result = filesystem_map.emplace(type, std::move(factory));
bool inserted = result.second;
ASSERT_MSG(inserted, "Tried to register more than one system with same id code");
auto& filesystem = result.first->second;
NGLOG_DEBUG(Service_FS, "Registered file system {} with id code {:#010X}",
filesystem->GetName(), static_cast<u32>(type));
return RESULT_SUCCESS;
}
ResultVal<std::unique_ptr<FileSys::FileSystemBackend>> OpenFileSystem(Type type,
FileSys::Path& path) {
NGLOG_TRACE(Service_FS, "Opening FileSystem with type={}", static_cast<u32>(type));
auto itr = filesystem_map.find(type);
if (itr == filesystem_map.end()) {
// TODO(bunnei): Find a better error code for this
return ResultCode(-1);
}
return itr->second->Open(path);
}
ResultCode FormatFileSystem(Type type) {
NGLOG_TRACE(Service_FS, "Formatting FileSystem with type={}", static_cast<u32>(type));
auto itr = filesystem_map.find(type);
if (itr == filesystem_map.end()) {
// TODO(bunnei): Find a better error code for this
return ResultCode(-1);
}
FileSys::Path unused;
return itr->second->Format(unused);
}
void RegisterFileSystems() {
filesystem_map.clear();
std::string nand_directory = FileUtil::GetUserPath(D_NAND_IDX);
std::string sd_directory = FileUtil::GetUserPath(D_SDMC_IDX);
auto savedata = std::make_unique<FileSys::SaveData_Factory>(std::move(nand_directory));
RegisterFileSystem(std::move(savedata), Type::SaveData);
auto sdcard = std::make_unique<FileSys::SDMC_Factory>(std::move(sd_directory));
RegisterFileSystem(std::move(sdcard), Type::SDMC);
}
void InstallInterfaces(SM::ServiceManager& service_manager) {
RegisterFileSystems();
std::make_shared<FSP_SRV>()->InstallAsService(service_manager);
}
} // namespace Service::FileSystem